From Cppreference
| Defined in header <queue>
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template<
class T,
class Container = std::deque<T>
> class queue;
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The std::queue class is a container adapter that gives the programmer the functionality of a queue - specifically, a FIFO (first-in, first-out) data structure.
Member types
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| Member type
| Definition
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| container_type
| Container
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| value_type
| Container::value_type
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| size_type
| Container::size_type
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| reference
| Container::reference
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| const_reference
| Container::const_reference
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Member functions
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| constructs the queue
(public member function)
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| destructs the queue
(public member function)
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| assigns values to the container adaptor
(public member function)
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Element access
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| access the first element
(public member function)
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| access the last element
(public member function)
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Capacity
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| checks whether the underlying container is empty
(public member function)
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| returns the number of elements
(public member function)
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Modifiers
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| inserts element at the end
(public member function)
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| constructs element in-place at the end
(public member function)
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| removes the first element
(public member function)
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| swaps the contents
(public member function)
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Member objects
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Template:cpp/container/dcl list c
